Book excerpt: G.J. Schaefer, described as "a textbook case of the classic serial killer", gives clues to his personality in this chilling selection of writings, which are from before and during his prison term. They include stories, fantasies, "plans", and poetry. Perverted, horrifying, filled with hatred and violence, they clearly reveal both Schaefer's own pathology and that of various prison inmates with whom he was on intimate terms. Not for the faint of heart, Killer Fiction will appeal to fans of true crime and those interested in criminal psychology. Photos and illustration s.